ok, the problem in your case seems to be the degree settings instead of
meters. I think this explains it. Your original data is in meters, I
assume. I don't know how QGIS exactly calculates the map scale, but 1
degree equals approx. 111km at 45 degree latitude. Maybe it assumes that
your meters are in fact degrees and this explains the huge scale
settings and the huge scale differences for different latitudes you get.
All your data it seems lives outside of the world then ...
In degrees, the world scales between -180/180 and -90/90. It seems to me
that QGIS perhaps should issue a warning if it loads data outside this
range.
Andreas
Werner Macho wrote:
Hi again!
Ok I must miss something somewhere..
I open QGIS .. Set the project projection to M34.
Load the shape file as a vector layer - set the Layer projection to
M34 (missed that before) .. but .. the same happens
Project has +proj=tmerc +lat_0=0 +lon_0=16.33333333333333 +k=1
+x_0=750000 +y_0=0 +ellps=bessel
+towgs84=577.326,90.129,463.919,5.137,1.474,5.297,2.4232 +units=m
+no_defs
Layer CRS is +proj=tmerc +lat_0=0 +lon_0=16.33333333333333 +k=1
+x_0=750000 +y_0=0 +ellps=bessel
+towgs84=577.326,90.129,463.919,5.137,1.474,5.297,2.4232 +units=m
+no_defs
Beat me but where can i find the "coordinate transformation turned
on?" switch?
And believe it or not .. I switched Setting -> Project Properties ->
Map Units from "decimal degrees" to "Meters" and now the scale stays
correctly at 1:90000 while moving ..
And I tried it with a new started QGIS also dont changing any
projection or Layer-CRS (assuming that everything is in WGS84) and it
seems that this is the only switch causing the scale displaying
strange values.
So can someone give me an explanation why it is changing so rapidly in
"decimal degrees" while staying at the correct value in "Meters"
And why is decimal degrees the default value? For me it seems more
reasonable to make Feet or Meters default..
Sorry for bothering you with a maybe silly question but I cant follow
this behaviour right now.
regards
Werner
Not for me, I get the scale 1:91916
What CRS does the layer have in your setup?
Do you have coordinate transformation turned on?
What CRS does the project have?
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